/Engine/Source/Runtime/MovieScene/Public/MovieSceneMetaData.h
Extend the default asset registry tag meta-data
virtual void ExtendAssetRegistryTagMetaData ( [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), [UObject::FAssetRegistryTagMetadata](API\Runtime\CoreUObject\UObject\UObject\FAssetRegistryTagMetadata) > & OutMetadata ) const